Hi,
If this low dose of lantus twice daily
is working for you without any problems, there
is no reason to change it. Lantus
is written as once daily but many doctors(including myself) and patients split the dose because even though it is supposed to be "peakless", it is not for some people. At low doses it works especially well as a split dose. Levemir can be used instead, and is more commonly written as twice daily.